Abstract

This Paper Analyzes the Impact of Different Detrending Approaches on the Performance of a Variety of Computational Intelligence (Ci) Models. Three Approaches Are Compared: Linear, Nonlinear Detrending (based on Empirical Mode Decomposition) and First-Differencing. Five Representative Ci Methods Are Evaluated: Dynamic Evolving Neural-Fuzzy Inference System (DENFIS), Gaussian Process (GP), Multilayer Perceptron (MP), Optimally Pruned Extreme Learning Machine (Op-Elm) and Support Vector Machines (SVM). Four Major Conclusions Are Drawn from Experiments Performed on Six Time Series Benchmarks: 1) Qualitatively, the Effect of Detrending is Remarkably Uniform for All the Ci Methods Considered, 2) Extraction of the overall Trend Does Not Improve Performance in General 3) the EMD-Based Method Provides Better Performance Than Linear Detrending (While the Difference is Negligible in Most Cases, It is Noticeable in Some Cases), and 4) First-Differencing, While Effective in Some Cases, Can Be Counterproductive for Series Showing Common Patterns. © 2010 IEEE.

Department(s)

Engineering Management and Systems Engineering

International Standard Book Number (ISBN)

978-142446917-8

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.

Publication Date

01 Jan 2010

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